Interactive metrics improvements

[jkartseva]

• Fix metrics from parallel replicas not being fully displayed. This happens because new metrics from subsequent batches of metrics (profile events) are ignored after the initial batch of profile events is rendered. Since metrics from parallel replicas come in separate messages, the issue appears.
• Display the metrics in order of the most recent update, then lexicographically by name. Use LRU-style list ordering to achieve this.
• Do not display stale metrics interactively since they occupy the display space. Display them in the final table after the query is completed.
• Decrease the freshness threshold from 5 to 3 seconds.

Up for discussion:
Aa maximum number of metrics displayed, e.g. display the first 100 sorted by update time, then name?
An option to filter by a specific metric name (or a name pattern)?
Make the metrics display less flickery?

Changelog category (leave one):

• Improvement

Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):

Interactive metrics improvements. Fix metrics from parallel replicas not being fully displayed. Display the metrics in order of the most recent update, then lexicographically by name. Do not display stale metrics.

interactive_metrics.mov

Documentation entry for user-facing changes

• Documentation is written (mandatory for new features)

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[robot-ch-test-poll2]

This is an automated comment for commit 113c2c3 with description of existing statuses. It's updated for the latest CI running

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Successful checks

Check name	Description	Status
AST fuzzer	Runs randomly generated queries to catch program errors. The build type is optionally given in parenthesis. If it fails, ask a maintainer for help	✅ success
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Docs check	Builds and tests the documentation	✅ success
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[clickhouse-gh]

Dear @Avogar, this PR hasn't been updated for a while. You will be unassigned. Will you continue working on it? If so, please feel free to reassign yourself.